Add sanity-plugin to marketplace

.claude-plugin/marketplace.json

@@ -686,15 +686,18 @@
       "homepage": "https://github.com/semgrep/mcp-marketplace.git"
     },
     {
-      "name": "adspirer-ads-agent",
-      "description": "Cross-platform ad management for Google Ads, Meta Ads, TikTok Ads, and LinkedIn Ads. 91 tools for keyword research, campaign creation, performance analysis, and budget optimization.",
-      "category": "productivity",
+      "name": "sanity-plugin",
+      "description": "Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual Editing.",
+      "category": "development",
+      "author": {
+        "name": "Sanity"
+      },
       "source": {
         "source": "url",
-        "url": "https://github.com/amekala/adspirer-mcp-plugin.git",
-        "sha": "aa70dbdbbbb843e94a794c10c2b13f5dd66b5e40"
+        "url": "https://github.com/sanity-io/agent-toolkit.git",
+        "sha": "4b1fb10bd707a22cf0cdfad5374ffc885f2ffa8d"
       },
-      "homepage": "https://www.adspirer.com"
+      "homepage": "https://www.sanity.io"
     }
   ]
 }